Sha256: 3c38279c64827f71ab3424edf7e4e4ad66c595c5ea598f7c29e503e89602366c
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# encoding: utf-8 module RuboCop module Cop module Style # This cop checks for options hashes and discourages them if the # current Ruby version supports keyword arguments. # # @example # Instead of: # # def fry(options = {}) # temperature = options.fetch(:temperature, 300) # ... # end # # Prefer: # # def fry(temperature: 300) # ... # end class OptionHash < Cop MSG = 'Prefer keyword arguments to options hashes.' def on_args(node) return unless supports_keyword_arguments? *_but_last, last_arg = *node # asserting that there was an argument at all return unless last_arg # asserting last argument is an optional argument return unless last_arg.optarg_type? _, default_value = *last_arg # asserting default value is a hash return unless default_value.hash_type? # asserting default value is empty hash *key_value_pairs = *default_value return unless key_value_pairs.empty? add_offense(last_arg, :expression, MSG) end private def supports_keyword_arguments? RUBY_VERSION >= '2.0.0' end end end end end
Version data entries
1 entries across 1 versions & 1 rubygems
Version | Path |
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rubocop-0.33.0 | lib/rubocop/cop/style/option_hash.rb |